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SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION> TSB Revision SYMPTOM PROCEDURES 23Ad-11 INSPECTION PROCEDURE 6: Shift Shock when Shifting from "N" to "D" and Long Delay . COMMENT . TROUBLESHOOTING HINTS (The most likely • Abnormal underdrive clutch pressure • Malfunction of the underdrive solenoid valve • Malfunction of the underdrive clutch • Malfunction of the valve body • Malfunction of the APP sensor • Malfunction of the PCM DIAGNOSIS Required Special Tool: • MB991502: Scan Tool (MUT-II) STEP 1. Using scan tool MB991502, check actuator test CAUTION To prevent damage to scan tool MB991502, always turn the Underdrive Solenoid Valve. • An audible clicking or buzzing should be heard when the underdrive solenoid valve is energized. (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 2. Refer to GROUP 23B, Valve Body confirm that the symptom is eliminated. STEP 2. Check when shift shock occurs. When engaging from N to D : Go to Step 3. STEP 3. Check the hydraulic pressure (for underdrive , Hydraulic Pressure Test. Q: Is the hydraulic pressure within the standard value? YES : Go to Step 4. ACX01539AD MB991502 16-PIN |